2 Samuel 10:6, 8

Now when the sons of Ammon saw that they had become odious to David, the sons of Ammon sent and hired the Arameans of Beth-rehob and the Arameans of Zobah, 20,000 foot soldiers, and the king of Maacah with 1,000 men, and the men of Tob with 12,000 men.

The sons of Ammon came out and drew up in battle array at the entrance of the city, while the Arameans of Zobah and of Rehob and the men of Tob and Maacah were by themselves in the field.